The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2011
Filed:
Mar. 14, 2008
Applicants:
Keiji Nomaru, Ota-Ku, JP;
Hiroshi Morikazu, Ota-ku, JP;
Taiki Sawabe, Ota-ku, JP;
Inventors:
Assignee:
Disco Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/06 (2006.01); B23K 26/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A laser processing machine that includes a chuck table adapted to hold a workpiece thereon and laser beam irradiation unit for applying a laser beam to the workpiece held on the chuck table. The laser beam irradiation unit includes: a laser beam oscillation section for emitting a pulse laser beam; a defection section for deflecting the pulse laser beam emitted from the laser beam oscillation section; and a concentrator having an ellipsoidal focusing spot forming section for focusing the pulse laser beam deflected by the deflection unit and forming a focusing spot into an ellipse.